Plant Contact Dermatitis

Plant Contact Dermatitis

Linked Articles

A patient presented for help with an “itchy rash” on the arms of 2 days’ duration. The eruption appeared after she had helped her parents clear thick overgrowths of “weeds” from the yard.

Key point: Almost the entire rash was composed of linear arrays of papules and small blisters. Pruritic linear vesicles are virtually always caused by plant contact dermatitis. Poison ivy, oak, and sumac are the most common causes, and they vary in prevalence by geographic area.

Treatment: Mild cases of very limited extent can be treated with twice-daily or three-times-daily application of a potent topical corticosteroid. More extensive disease requires a 2- to 4-week, tapering course of oral corticosteroids (such as prednisone, starting at 40 to 60 mg/d).

Note: Sensitivity to the rhus family of plants is essentially lifelong and difficult to completely eliminate, even following desensitization protocols.

Your name

E-mail

The content of this field is kept private and will not be shown publicly.

Homepage

Enter your comment here... *

Notify me when new comments are posted

All comments

Replies to my comment

order

Oldest First

Newest First

Loading comments...

Already Registered? Login Now:

Remember Me

Register Today - It's Free!

Do you have a good teaching case with an accompanying clinical photograph (or 2)? We are inviting fresh new cases on any aspect of primary care. We offer a $75 honorarium for accepted cases. More details on submission, here.